<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Document</title>
    <style>
       div{
           width: 200px;
           height: 300px;
           border-top: 1px solid green;
           border-left: 1px soled orange;
           border-right: 1px solid rebeccapurple;
           border-bottom: 1px solid red;
       }
       input{
           /* border: none; */
           border-top: 1px dashed blue;
       }
    </style>
</head>
<body>
    <div></div>
    请输入用户名：<input type="text"><br>
    请输入密码：<input type="password">
</body>
</html>